Jay Cutler is unlikely to be the Bears' starting quarterback for their Week 11 Monday night matchup against the San Francisco 49ers. ESPN's John Clayton reports Cutler is doubtful to play following the concussion he suffered in Sunday night's loss to the Houston Texans.

Because of Cutler's history of head injuries dating to his college playing days at Vanderbilt, the Bears are expected to proceed with caution. It would mean that Jason Campbell, who relieved Cutler against the Texans, will get his first start with the Bears.

Jay Cutler's concussion is likely to keep him in the sidelines for the Bears' game against the 49ers. (AP Photo)

Campbell started in the Bay Area in 2011, posting a 4-2 record for the Oakland Raiders before he suffered a season-ending collarbone injury. After Oakland traded for his replacement, current AFC passing yardage leader Carson Palmer, he signed with Chicago as a free agent in March.

The Bears struggled mightily to stay afloat offensively when Cutler went down in 2011 with a thumb injury, as both Caleb Hanie and Josh McCown (re-signed for insurance this week) didn't get the job done.

That's the very reason Campbell was brought in, but unfortunately for him, he's about to step right into a brutal matchup against the 49ers' defense on the road.